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USDA Hardiness Zone 8b

Frost Dates for 39083 — Hazlehurst, Mississippi

NOAA 1991–2020 normals from Hazlehurst 5 SW, MS (600 ft), 2 miles west.

Updated

In Hazlehurst, the last spring frost (32°F) is around March 14 in half of years and has passed by April 4 in nine years out of ten. The first fall frost comes around November 13, as early as November 1 one year in ten, leaving a typical freeze-free season of 245 days (NOAA, Hazlehurst 5 SW, MS).

Last spring frost
March 14

50% probability

First fall frost
November 13

50% probability

Growing season
245 days

freeze-free, 50%

Hardiness zone
8b

15 to 20°F (-9.4 to -6.7°C) coldest night

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
7%

2 of 28 observed

Snow per year
0.1"

NOAA normal

Frost risk by date in Hazlehurst

Half of springs at Hazlehurst 5 SW, MS see their last 32°F night by March 14; only one in ten is past it by February 23, and one in ten still has one after April 4. Planting tender crops after March 23 leaves a 30% risk of a frost on them, after March 28 20%, and after April 4 10%. The 21 days between the even-odds date and the one-in-ten date is wider than at 73% of the 96 Mississippi stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by November 13 in half of years, as early as November 1 one year in ten, and holds off past December 3 one year in ten. A hard freeze of 28°F follows 14 days later, around November 27; in spring the one-in-ten date for 28°F is March 19, 16 days before the 32°F one. The freeze-free season lasts 245 days in a typical year, longer than at 64% of the 96 Mississippi stations; it reaches 273 days one year in ten and falls short of 219 one year in ten. On average 33 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 15 days longer, to about March 29, and return around November 3. Nights of 24°F, cold enough to damage hardier plants, come in 96% of winters and 16°F in 41%.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FMar 9Mar 15Mar 20Mar 26Mar 29Apr 3Apr 6Apr 11Apr 20
32°FFeb 23Mar 1Mar 6Mar 10Mar 14Mar 18Mar 23Mar 28Apr 4
28°FJan 30Feb 9Feb 17Feb 23Feb 28Mar 4Mar 8Mar 14Mar 19
24°F96% of yrsJan 9Jan 19Jan 28Feb 1Feb 8Feb 17Feb 25Mar 2Mar 10
20°F75% of yrsDec 29Jan 9Jan 16Jan 22Jan 27Jan 31Feb 5Feb 14Feb 27
16°F41% of yrstoo rare for a date
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FOct 20Oct 26Oct 29Nov 1Nov 3Nov 6Nov 9Nov 13Nov 19
32°FNov 1Nov 4Nov 7Nov 10Nov 13Nov 17Nov 21Nov 27Dec 3
28°FNov 6Nov 11Nov 17Nov 22Nov 27Dec 1Dec 5Dec 10Dec 23
24°F96% of yrsNov 19Nov 29Dec 4Dec 9Dec 16Dec 24Jan 1Jan 5Jan 15
20°F75% of yrsDec 7Dec 16Dec 24Dec 31Jan 4Jan 8Jan 14Jan 22Feb 5
16°F41% of yrstoo rare for a date

Freeze probabilities 1991–2020 at Hazlehurst 5 SW, MS, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.

Frost risk on any date in 39083 →Compare Hazlehurst with another place →

Weather by month in Hazlehurst

July is the warmest month at Hazlehurst 5 SW, MS, averaging 90°F by day and 71°F at night; January is the coldest at 58°F and 39°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 80% of years and April still brings one in 15% of years.

Warmth for growing adds up to 6,184 growing degree days a year (base 50°F), more than at 69% of the 96 Mississippi stations. 42% of them (2,591) have built up by the end of June, and July adds the most, 956. Precipitation totals 61.7 inches a year, most in January (6.2") and least in September (3.8"); May to September bring 39% of it.

Monthly normals 1991–2020 at Hazlehurst 5 SW, MS
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan58396.298%10115
Feb63425.894%7151
Mar70485.880%3307
Apr76545.415%<1456
May83634.40%0702
Jun88694.90%0861
Jul90716.10%0956
Aug90715.00%0945
Sep87663.80%0789
Oct78563.910%<1528
Nov67464.683%4237
Dec60415.897%9138

Monthly normals 1991–2020 at Hazlehurst 5 SW, MS (600 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.

Compared with the next station

The nearest other station, Crystal Spgs Exp Stn, MS, 8 miles northeast of Hazlehurst, has a last frost 3 days earlier (March 11), a first frost 3 days later (November 16), a season 5 days longer.

Frost dates for 39059 (Crystal Springs) →

When it snows in Hazlehurst, Mississippi

Measurable snow is rare here: only 2 of 28 winters from 1991 to 2020 recorded 0.1 inch or more at Hazlehurst 5 SW, MS, 1.5 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 39083

What to do and when, from the 50% frost dates for Hazlehurst, Mississippi
WhenWhat to do
January 3 – January 17Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
January 17 – January 31Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
February 14 – February 28Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
March 14 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 21Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 30Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 13 onwardPlant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter.

The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.

Where these figures come from

ZIP 39083 is 2 miles from Hazlehurst 5 SW, MS, which stands at 600 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 39083 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.

Frost dates across Mississippi →

Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.

Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.

ZIP codes measured at the same station

Other zone 8b places in Mississippi